Home / 13,283.53-18,336.24-8,808.78

Finding the Fourth Proportional to 13,283.53, 18,336.24 and 8,808.78

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Solution

The fourth proportional to 13,283.53, 18,336.24 and 8,808.78 is: 12,159.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,283.53 : 18,336.24 = 8,808.78 : x
  2. Step 2: Convert to fraction form
    13,283.53/18,336.24 = 8,808.78/x
  3. Step 3: Cross multiply
    13,283.53x = 18,336.24 × 8,808.78
  4. Step 4: Simplify right side
    13,283.53x = 161,519,768.46
  5. Step 5: Solve for x
    x = 161,519,768.46/13,283.53
  6. Step 6: Final answer
    x = 12,159.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.